What types of stress are set up in a simply supported beam carrying a concentrated load?

In a simply supported beam carrying a concentrated load, both shear stress and bending stress are developed due to the loading conditions.

When the load is applied at a point on the beam, it transmits forces that lead to internal reactions. The concentrated load causes the beam to bend. As the beam bends, the material experiences tension on one side and compression on the opposite side, resulting in bending stress.

Additionally, the weight of the load generates shear forces along the length of the beam at various cross-sections. These shear forces lead to shear stress within the beam that acts parallel to the section being analyzed.

Thus, both shear stress and bending stress are integral to understanding how the beam behaves under the applied load and are essential concepts in structural engineering. This is why the choice that includes both shear stress and bending stress is the correct response.